also at the last minute use the remaining energon to buy resources. then sell those resources at a slightly higher price, this sends yer liquidated resources into limbo allowing them absolutely nothing. while keeping the value of the resources sold in limbo until a buyer purchases. and can be done without the time it takes to move resources between bases. yes you lose some value when you buy them back,. but if a farmer comes along he has nothing for his trip and you cease top be an asset and more a cost due to the oil used to attack.